Skip to content
buyModerate

Mihael Hristos Polymeropoulos bought $84k of VNDA

President and CEO at Vanda Pharmaceuticals Inc.. 20,000 shares at an average of $4.22, traded May 16, 2025, filed May 19, 2025.

Conviction score
43
Value
$84k
20,000 shares
Holdings after
2,315,731
+1% from before
From 52-week low
+6%
low $3.92, close $4.16
From 52-week high
-24%
high $5.46, as of May 16, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $84k at market
    +9
  • Relative to holdings
    Under 1% of holdings (0.9%)
    -5
  • Price context
    6% above the 52-week low; 24% below the 52-week high
    +14
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +5.1%, 3m +5.8%, 6m +2.1%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

VNDAOct 9, 2026 · close 4.57
Since filing May 19, 2025: +6.0%SPY +33.1% · excess -27.0%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0000950170-25-074565, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 16, 2025POpen-market purchase
Common Stock
+20,000$4.22$84k2,315,731May 19, 2025

Related signals

Other insiders at Vanda Pharmaceuticals Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
45Moderate
VNDAsell 6
Vanda Pharmaceuticals Inc.
Gunther Birznieks
SVP, Business Development
$351k
42,431 shares
-8%
52Moderate
VNDAsell 6
Vanda Pharmaceuticals Inc.
Kevin Patrick Moran
SVP, CFO & Treasurer
$351k
42,442 shares
-9%
65Notable
VNDAsell 6
Vanda Pharmaceuticals Inc.
Mihael Hristos Polymeropoulos
President and CEO
$1.3M
156,235 shares
-5%
50Moderate
VNDAsell 6
Vanda Pharmaceuticals Inc.
Timothy Williams
SVP & General Counsel
$351k
42,434 shares
-10%
43Moderate
VNDAsell 6
Vanda Pharmaceuticals Inc.
Joakim Wijkstrom
SVP, Chief Marketing Officer
$255k
30,800 shares
-8%
48Moderate
VNDAsell 6
Vanda Pharmaceuticals Inc.
Tage Honore
director
$241k
30,000 shares
-24%
45Moderate
VNDAbuy
Vanda Pharmaceuticals Inc.
Mihael Hristos Polymeropoulos
President and CEO
$42k
10,000 shares
+0%
20Weak
VNDAsell
Vanda Pharmaceuticals Inc.
Stephen Ray Mitchell
director
$32k
7,000 shares
-7%
35Weak
VNDAbuy
Vanda Pharmaceuticals Inc.
Mihael Hristos Polymeropoulos
President and CEO
$44k
10,000 shares
+0%
25Weak
VNDAsell
Vanda Pharmaceuticals Inc.
Stephen Ray Mitchell
director
$26k
5,000 shares
-10%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.